LG P705 Service Manual page 40

SW1000
C1106
G1
G2 ANT
L1042
DNI
R1000
GSM_PA_RAMP
2.2K
R1003
47
7dB
C1068
WCDMA_LB_RTX R1006
15p
L1017
33
DNI
7.4dB
TP2
2mm
L1027 1.5n
WCDMA_HB_RTX
0603
C1033
L1029 L1030
C1034
15n 6.8n
47p
C1049
10u
C1050
C1051
C1052
ANT_SEL[3]
ANT_SEL[2]
ANT_SEL[0]
ANT_SEL[1]
LGE Internal Use Only
SW1001
ANT COMMON
1
2.7n
G3 G4
3 4
L1043
DNI
0603
C1024
39p
1
2
3
4
5
6
7
FL1002
L1031
8
6 1
ANT RX
1.2n
3
TX
L1018 L1033
4.7n 39n
2 9
GND1 GND6
4 8
GND2 GND5
5 7 TP3
GND3 GND4
897.5MHz,942.5MHz
29
BAND8(2520) : SAYRJ897MCA0B0A
BAND5(2520) : B7671
30
31
32
33
34
1950MHz, 2140MHz
FL1005
L1038
6 1
ANT RX
2.2n
3
TX
DNI
0603
2 7
GND1 GND4 C1102
4 8
GND2 GND5
5 9
GND3 1n GND6
1n
BAND1(2520):B7697
BAND2(2520):ACMD-7407
1n
1n
For testing, Max power output is needed.
C1094
2
1.8n
C1009
L1001
DNI
HB_IN
C1060 C1062
C1061
GND1
0603
22p 100p 0.1u
LB_IN
VAPC
VBATT
BS2
U1001
C1064 18p
BS1
TXEN_ L1016
L1015
DNI
8.2n
14
OUT_BAND_VIII
13
GND3
12
FEM
VCC2_2
11
GND2
10
OUT_BAND_I
9
GND1
R1010 8
PDET_IN CPL_OUT
PGND1 62 16
PGND2
PGND2
BAND18:SKY77195
PGND3
PGND4
2.2n C1084
PGND5
L1025
L1024
PGND6
DNI 0.5p
- 40 -
4. TROUBLE SHOOTING
TP1
100p
L1002
100n
44
PGND16
43
PGND15
42
PGND14
41
PGND13
Near to 4 Pin Near to 12 Pin
Near to 12 Pin
1mm
22
GND5 C1067
C1065 C1066
1n 21 330p
10u
GND4
20
GND3
19
GND2
U1002
C1071 L1020
1 18 4
IN_BAND_VIII
2 5.6n
VMODE_0 ANT PA_R0 100p
3
VMODE_1 PA_R1
17
4
VCC2_1
L1021
5
WCDMA3 897.5 MHz
VEN_BAND_VIII PA_ON1
DNI
6
VEN_BAND_I PA_ON0
16
7
IN_BAND_I
WCDMA2 15
PGND1
15 L1022
C1080
WCDMA1
3.3n
33p
BAND15: 0603
BAND25:
L1023
8.2n
1950MHz
40
PGND12
39
PGND11
38
PGND10
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
WCDMA_HB_RTX
WCDMA_LB_RTX
L1000
DNI
FL1000
C1013
100p
4
IN_881_5
C1018
3.9n
1
IN_942_5
2
GND1
3
L1005
GND2
DNI
VBAT
W900/850
FL1003
C1072
C1073
1
WCDMA_LB_TX
OUT IN
6.8n
12n
G3 G2 G1
C1074
5 3 2
1p
W2100/1900
FL1004
2.2n
3
C1081
G3
4 1
WCDMA_HB_TX
OUT IN
G2 G1
100p C1082
5 2
C1083
DNI
TP4
DNI
L1009
FL1001
C1056 2.4n
4
C1058
18p 1
2
L1012
3
4.7n
IN_1842_5
IN_1960
GND1
GND2